This 2001 Audi B5 S4 Avant features a 6-speed manual transmission swap and extensive performance modifications including BorgWarner K04 turbochargers, a Stage 3 ECU tune, and a JHM 300mm Big Brake Kit. It comes with a clean Carfax report, though the listing notes various cosmetic imperfections, an oil leak, and a "Service" message related to aftermarket brakes. The seller has owned the vehicle since August 2019 and added approximately 4,000 miles.